A scientific critique of oceanic iron fertilization as a climate

0,32

MB

change mitigation strategy

32

stron

5491

ID

Greenpeace Research Laboratories

2007

rok

CONTENTS

EXECUTIVE SUMMARY

1. INTRODUCTION

1.1 Phytoplankton

1.2 The Biological Pump

1.3 The Iron Hypothesis

2. SUMMARY OF MESOSCALE IRON ENRICHMENT EXPERIMENTS 1993 - 2005

3. DRAWBACKS OF COMMERCIAL IRON FERTILIZATION

3.1 Carbon Sequestration – Inadequate and Impractical

3.1.1 Consideration of Results from Mesoscale Iron Enrichment Studies

3.1.2 Modelling Studies

3.2 Ecological Impacts

3.3 Geophysical Concerns

3.3.1 Nitrous Oxide and Methane

3.3.2 Dimethylsulphide (DMS) and Other Trace Gases

4. CONCLUSIONS

APPENDIX 1 - Findings of Twelve Mesoscale Iron Enrichment Experiments 1993-2005

APPENDIX 2 - References